You notice a starter motor noise on your Mercedes Classe B 3 every time you start your car. We agree that this is not agreeable and that you have inquiries. Discovering such a noise is not always a good sign, but it may also be nothing major. To assist you solve this trouble, our team has chosen to prepare this content to assist you in this research. First, we will detail how the starter motor functions on your Mercedes Classe B 3, and then what starter motor noises you can encounter on your Mercedes Classe B 3.starter-motor-noise-mercedes-classe-b-3

Functioning and various information

Function of a starter motor on Mercedes Classe B 3

The starter motor is an electric motor whose only task is to start the engine of your vehicle. By a magnetic system and a “serial” technology, it will launch an enormous torque that will allow it to drive the pistons of the engine that are subjected to enormous compression and an oil that provides additional resistance being not very fluid when cold.
It is completed by the “solenoid”. It is an electromagnet that goes under a 12 volt electric impulse to push the fork (link element between the “solenoid” and the electric motor of the starter) and thus engage the starter drive pinion on the engine flywheel. Following this action, once in engagement, the starter motor of your Mercedes Classe B 3 is activated and turns the drive pinion on the flywheel to start the engine.

How to prevent starter motor noises on Mercedes Classe B 3

  • Do not run your starter too long
  • Even if your engine does not start because of tired glow plugs, for example, or because the weather conditions is too cold. You should not try to start for more than a few seconds or you will burn your starter motor. In fact, the current needed to make it turn and the speed of rotation only allows it to perform its function over very short and intense periods of time. If the car does not start, look for the solution elsewhere.

  • Do not use a starter motor on Mercedes Classe B 3 with a tired battery
  • Although when you have a battery that is tired, you always want to start your vehicle, the energy it is capable of holding may not be good enough to generate the power expected by the starter motor to start your engine. Repeated attempts will pre-use your starter motor and if you do not treat the reason of your failure to start repeatedly, your starter may be the future element you will have to change.

I notice noises from the starter motor of my Mercedes Classe B 3, what are the causes?

I feel a loud noise from the starter of my Mercedes Classe B 3

If you listen to a starter motor noise on Mercedes Classe B 3 and you have the feeling that it is close to a loud noise, it is possible that it is the starter motor gears that are at the origin of it. In fact, often when the component has been dismantled for other maintenance, its adjustment in relation to the engine flywheel may no longer be ideal, in which circumstance the gears will be worn down over time and will not slip and will no longer properly engage the engine when starting. Verify the state of the drive pinion, if it is responsible of the starter motor noise on your Mercedes Classe B 3 swap it.
If it is a noise in the front of your vehicle but it seems to you after checking not to come from your starter, read this content about front end noise on Mercedes Classe B 3 which may give you other leads to solve your noise trouble.

I notice a clicking noise of the key running in my neiman but no noise at the starter motor of my Mercedes Classe B 3

If you notice a clicking noise at the starter motor of your Mercedes Classe B 3, there are two possible failures related to this warning sign. If you have in addition to the noise the motor is not running, it may be the “solenoid” is not supplied with energy. One of the most classic ways to relaunch it is to hit it with a metal bar to remove the dust that blocks it. If that is not enough, it may be the neiman who is concerned. You could have a trouble with unplugged cable examine your electrical installation. If after tracking this clicking noise on Mercedes Classe B 3 doesn’t come from your starter motor, check this article for more informations.